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1.
H-空间与拟向量变分不等式   总被引:2,自引:0,他引:2  
本在Hausdorff locally convex H-空间上建立了一个新的不动点定理;利用局部交性质,在Hausdorff locally convex H-空间上建立了相应的拟向量变分不等式.  相似文献   

2.
让ψ是蕴含仿紧性的映射保持的闭遗传性质.本文建立了仿紧局部ψ空间的闭映象、某些序列覆盖L映象的内在特征的一般性定理,推广了仿紧局部紧空间映象等的若干结论.  相似文献   

3.
得到局部G-凸一致空间上具有S-KKM性质的集值映射的新的几乎不动点定理和不动点定理.我们的结果对已有文献中的相应结论进行了改进和一般化.  相似文献   

4.
林鹭  曾晓明 《数学研究》1995,28(3):93-98
本文应用经典的Feller-Thotter型算子在Cω[0,+∞]空间中局部小o饱和定理,建立Banach空间上C半群概率表示的局部小o饱和定理.  相似文献   

5.
本文研究了s-空间的性质.利用加法定理及剩余性质,得到以下结论:(1)如果s-空间X是可数多个度量子空间的并,则X是序列空间;(2)如果非局部紧拓扑群G在某个紧化b G中的剩余是遗传s-空间,则G是可分度量空间或σ-紧空间.以上性质推广了Arhangel’skii关于s-空间的一些已有结论.  相似文献   

6.
陈东立 《数学研究》1996,29(3):41-43
在k-饱和的超幂非标准模型中将序列的无穷小延伸定理推广到网的情形并利用网的无穷小延伸定理给出函数空间一致收敛拓扑的一个主要性质的直观简短的离散化证明.  相似文献   

7.
本文证明了共轭A—调和张量的局部范数比较定理和整个区域上的范数比较定理.这些定理类似于Hardy和Litewood的关于共轭调和函数的定理.从这些定理中,得知一个A—调和张量的Lp—可积性决定了它的共轭的类似性质.  相似文献   

8.
关于可分解算子的扰动的不变子空间(英文)   总被引:1,自引:0,他引:1  
在文献[1]中,J.Eschmeier和B.Prunaru证明了(复)Banach空间上的每个具有Bishop性质(β)和浓厚谱的有界线性算子有非平凡的不变子空间.在文献[2]中,H.Mohebi和M.Radjabalipour在减弱算子的Bishop性质(β)和加强谱的浓厚性条件的情况下得到了另外几个不变子空间定理.本文给出了一个更进一步的不变子空间定理(见定理1).  相似文献   

9.
第一部分给出局部β-凸空间中的第二分离性定理和Minkowski定理及Krein-Milman定理等;第二部分得到其共轭锥上U F-有界与U B-有界等价的充要条件为原空间是次完备的.  相似文献   

10.
局部FC-空间上的几乎不动点和不动点   总被引:1,自引:0,他引:1  
利用古典的KKM原理的开[闭]形式得到FC-空间上的KKM型定理并给出局部FC-空间上的上[下]半连续映射的几乎不动点定理,最后给出在局部FC-空间上具有闭值且其值为FC-子空间的上半连续映射的不动点定理.  相似文献   

11.
An empirical study is performed on the local-optimum space in graph bipartitioning. We examine some statistical features of the fitness landscape and the local properties of the landscape. They include the distributions of local optima, their cost-distance correlations, their attraction powers, the properties around the central area of local optima, etc. The study reveals some new notable results about the properties of the fitness landscape. For example, the central area yielded good quality in local-optimum space, the local-optimum space had the self-similar structure of global convexity, local optima showed clusters in more than one place, etc. We also provide a simple experiment on whether it is worth to exploit the area around the Euclidean center of the problem space.  相似文献   

12.
In this paper, we discuss local convergence of a family of Chebychev-Halley type methods with a parameter θ∈[0,1] in Banach space using Smale-type δ criterion under 2-th γ-condition. We will see that the properties of the condition used for local convergence is much more different from that used in [6][15] for the semi-local convergence.  相似文献   

13.
1引言1950年N.Aronszjan发表的一篇综述性文章《Theory of reproducing kernels》标志再生核理论的初步形成.由于再生核有许多良好的计算性质,S.Saitoh总结并深入研究再生核基本理论,进一步拓展了再生核的应用领域;徐利治把再生核应用于L~2(B)(B是复平面上的一个区域)中解析函数重积分降维问题,并提出了一个能对一些预先给出的  相似文献   

14.
K-Drop凸空间与局部K-Drop凸空间   总被引:1,自引:0,他引:1  
引入了Banach空间的局部k-drop凸性质,研究了k-drop凸与局部k-drop凸的一些性质以及两者之间的关系,并用单位球的切片统一而简洁地处理了这两个性质.  相似文献   

15.
Bergman空间上Toeplitz算子的局部化   总被引:2,自引:0,他引:2  
孙善利  卢玉峰 《东北数学》1996,12(3):373-380
Bergman空间上Toeplitz算子的局部化@孙善利@卢玉峰...  相似文献   

16.
We study the covariant free bosonic string field theory and explore its locality (causality) properties. We find string fields which are strictly local and covariant, but act on an unconstrained Hilbert space with an indefinite inner product. From these we construct observable fields which act on the physical Hilbert space with a definite inner product. These are shown to be approximately local.  相似文献   

17.
讨论Banach空间几种超投影性质(及其相应的局部化性质)之间的关系,证明了在Banach空间X自反的条件下,X是lp-次投影空间的充要条件是X*是lp-超投影空间,X是局部lp-次投影空间的充要条件是X*是局部lp-超投影空间,以及X是局部次投影空间的充要条件是X*是局部超投影的。其中1/p+1/q=1(p>1,q>1)。  相似文献   

18.
The local Minkowski tensors are valuations on the space of convex bodies in Euclidean space with values in a space of tensor measures. They generalize at the same time the intrinsic volumes, the curvature measures and the isometry covariant Minkowski tensors that were introduced by McMullen and characterized by Alesker. In analogy to the characterization theorems of Hadwiger and Alesker, we give here a complete classification of all locally defined tensor measures on convex bodies that share with the local Minkowski tensors the basic geometric properties of isometry covariance and weak continuity.  相似文献   

19.
In this paper, a characterization for an I(L)-topological space to be generated by a given co-tower of L-topological spaces is obtained. Moreover, the relationship between some properties of an I(L)-topological vector space generated by a co-tower of L-topological vector spaces and the corresponding properties of the given co-tower of L-topological vector spaces is investigated. Our results show that if an I(L)-topological vector space generated by a co-tower of L-topological vector spaces has some properties, such as local convexity and local boundedness, then all L-topological vector spaces in the co-tower also have the same properties. But the converse is incorrect even in the case of I-topological vector space generated by a co-tower of classical topological vector spaces. Finally, we supply a necessary and sufficient condition for an I(L)-topological vector space generated by a co-tower of L-topological vector spaces with some properties, such as local convexity and local boundedness, to have such properties too.  相似文献   

20.
In this paper, the authors introduce Morrey-type spaces on the locally doubling metric measure spaces, which means that the underlying measure enjoys the doubling and the reverse doubling properties only on a class of admissible balls, and then obtain the boundedness of the local Hardy–Littlewood maximal operator and the local fractional integral operator on such Morrey-type spaces. These Morrey-type spaces on the Gauss measure space are further proved to be naturally adapted to singular integrals associated with the Ornstein–Uhlenbeck operator. To be precise, by means of the locally doubling property and the geometric properties of the Gauss measure, the authors establish the equivalence between Morrey-type spaces and Campanato-type spaces on the Gauss measure space, and the boundedness for a class of singular integrals associated with the Ornstein–Uhlenbeck operator (including Riesz transforms of any order) on Morrey-type spaces over the Gauss measure space.  相似文献   

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